1.25 in telescope collimator 2-inch adapter newton sca laser collimator level 7 astronomical brightness

use a 2 ', easy to install in 1.25', or 2 ', 7 adjustable brightness levels. it's easy to observe the laser target and adjust the sealing screw to the main body until the red dot is centered, without long-term observation of the telescope's eyes. features: the 1.25 'and 2'" telescopes delivered with a 2 'detachable adapter are simple and time-saving. 7. adjustable brightness levels for incredible alignment in the dark and during the day. wavelength 635-655nm and output power less than 5mw fo